Device for ultrasonic-enhanced photoelectrocatalysis treatment of wastewater containing heavy metal and persistent organic pollutant

The invention aims to provide a device for ultrasonic-enhanced photoelectrocatalysis treatment of wastewater containing heavy metal and persistent organic pollutant. The device comprises an electrolytic tank, an ultrasonic generating device, a direct-current power source and an aeration device, a quartz tube, an anode electrode plate and a cathode electrode plate are vertically mounted in the electrolytic tank, a holed air plate is transversely arranged in the electrolytic tank, and the bottom of the quartz tube is connected with a baseplate of the electrolytic tank while the top of the same penetrates the holed air plate and extends out of the electrolytic tank; the anode electrode plate and the cathode electrode plate are positioned above the holed air plate and connected with the direct-current power source, an ultraviolet lamp or a fluorescent lamp is mounted in the quartz tube, the ultraviolet lamp and the fluorescent lamp extend out of the quartz tube and are connected with an outside power source, a pa